[turbofan] Add length operand to LoadElement and StoreElement.

src/compiler/js-generic-lowering.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/code-factory.h"
 #include "src/code-stubs.h"
 #include "src/compiler/common-operator.h"
 #include "src/compiler/graph-inl.h"
 #include "src/compiler/js-generic-lowering.h"
 #include "src/compiler/machine-operator.h"
@@ skipping 158 matching lines @@
   }
   Node* compare =
       graph()->NewNode(common()->Call(desc_compare),
                        static_cast<int>(inputs.size()), &inputs.front());
 
   node->ReplaceInput(0, compare);
   node->ReplaceInput(1, SmiConstant(token));
 
   if (has_frame_state) {
     // Remove the frame state from inputs.
-    // TODO(jarin) This should use Node::RemoveInput (which does not exist yet).
-    int dest = NodeProperties::FirstFrameStateIndex(node);
-    for (int i = NodeProperties::PastFrameStateIndex(node);
-         i < node->InputCount(); i++) {
-      node->ReplaceInput(dest, node->InputAt(i));
-      dest++;
-    }
-    node->TrimInputCount(dest);
+    node->RemoveInput(NodeProperties::FirstFrameStateIndex(node));
   }
 
   ReplaceWithRuntimeCall(node, Runtime::kBooleanize);
 }
 
 
 void JSGenericLowering::ReplaceWithStubCall(Node* node, Callable callable,
                                             CallDescriptor::Flags flags) {
   CallDescriptor* desc = linkage()->GetStubCallDescriptor(
       callable.descriptor(), 0, flags | FlagsForNode(node));
@@ skipping 204 matching lines @@
 
 void JSGenericLowering::LowerJSCallRuntime(Node* node) {
   Runtime::FunctionId function = OpParameter<Runtime::FunctionId>(node);
   int arity = OperatorProperties::GetValueInputCount(node->op());
   ReplaceWithRuntimeCall(node, function, arity);
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8